sound/soc/tegra/trimslice.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * trimslice.c - TrimSlice machine ASoC driver
   4  *
   5  * Copyright (C) 2011 - CompuLab, Ltd.
   6  * Author: Mike Rapoport <mike@compulab.co.il>
   7  *
   8  * Based on code copyright/by:
   9  * Author: Stephen Warren <swarren@nvidia.com>
  10  * Copyright (C) 2010-2011 - NVIDIA, Inc.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/of.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/slab.h>
  17
  18 #include <sound/core.h>
  19 #include <sound/jack.h>
  20 #include <sound/pcm.h>
  21 #include <sound/pcm_params.h>
  22 #include <sound/soc.h>
  23
  24 #include "../codecs/tlv320aic23.h"
  25
  26 #include "tegra_asoc_utils.h"
  27
  28 #define DRV_NAME "tegra-snd-trimslice"
  29
  30 struct tegra_trimslice {
  31         struct tegra_asoc_utils_data util_data;
  32 };
  33
  34 static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
  35                                         struct snd_pcm_hw_params *params)
  36 {
  37         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
  38         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  39         struct snd_soc_card *card = rtd->card;
  40         struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
  41         int srate, mclk;
  42         int err;
  43
  44         srate = params_rate(params);
  45         mclk = 128 * srate;
  46
  47         err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
  48         if (err < 0) {
  49                 dev_err(card->dev, "Can't configure clocks\n");
  50                 return err;
  51         }
  52
  53         err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
  54                                         SND_SOC_CLOCK_IN);
  55         if (err < 0) {
  56                 dev_err(card->dev, "codec_dai clock not set\n");
  57                 return err;
  58         }
  59
  60         return 0;
  61 }
  62
  63 static const struct snd_soc_ops trimslice_asoc_ops = {
  64         .hw_params = trimslice_asoc_hw_params,
  65 };
  66
  67 static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
  68         SND_SOC_DAPM_HP("Line Out", NULL),
  69         SND_SOC_DAPM_LINE("Line In", NULL),
  70 };
  71
  72 static const struct snd_soc_dapm_route trimslice_audio_map[] = {
  73         {"Line Out", NULL, "LOUT"},
  74         {"Line Out", NULL, "ROUT"},
  75
  76         {"LLINEIN", NULL, "Line In"},
  77         {"RLINEIN", NULL, "Line In"},
  78 };
  79
  80 SND_SOC_DAILINK_DEFS(single_dsp,
  81         DAILINK_COMP_ARRAY(COMP_EMPTY()),
  82         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")),
  83         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  84
  85 static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
  86         .name = "TLV320AIC23",
  87         .stream_name = "AIC23",
  88         .ops = &trimslice_asoc_ops,
  89         .dai_fmt = SND_SOC_DAIFMT_I2S |
  90                    SND_SOC_DAIFMT_NB_NF |
  91                    SND_SOC_DAIFMT_CBS_CFS,
  92         SND_SOC_DAILINK_REG(single_dsp),
  93 };
  94
  95 static struct snd_soc_card snd_soc_trimslice = {
  96         .name = "tegra-trimslice",
  97         .owner = THIS_MODULE,
  98         .dai_link = &trimslice_tlv320aic23_dai,
  99         .num_links = 1,
 100
 101         .dapm_widgets = trimslice_dapm_widgets,
 102         .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
 103         .dapm_routes = trimslice_audio_map,
 104         .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
 105         .fully_routed = true,
 106 };
 107
 108 static int tegra_snd_trimslice_probe(struct platform_device *pdev)
 109 {
 110         struct device_node *np = pdev->dev.of_node;
 111         struct snd_soc_card *card = &snd_soc_trimslice;
 112         struct tegra_trimslice *trimslice;
 113         int ret;
 114
 115         trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
 116                                  GFP_KERNEL);
 117         if (!trimslice)
 118                 return -ENOMEM;
 119
 120         card->dev = &pdev->dev;
 121         snd_soc_card_set_drvdata(card, trimslice);
 122
 123         trimslice_tlv320aic23_dai.codecs->of_node = of_parse_phandle(np,
 124                         "nvidia,audio-codec", 0);
 125         if (!trimslice_tlv320aic23_dai.codecs->of_node) {
 126                 dev_err(&pdev->dev,
 127                         "Property 'nvidia,audio-codec' missing or invalid\n");
 128                 return -EINVAL;
 129         }
 130
 131         trimslice_tlv320aic23_dai.cpus->of_node = of_parse_phandle(np,
 132                         "nvidia,i2s-controller", 0);
 133         if (!trimslice_tlv320aic23_dai.cpus->of_node) {
 134                 dev_err(&pdev->dev,
 135                         "Property 'nvidia,i2s-controller' missing or invalid\n");
 136                 return -EINVAL;
 137         }
 138
 139         trimslice_tlv320aic23_dai.platforms->of_node =
 140                         trimslice_tlv320aic23_dai.cpus->of_node;
 141
 142         ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
 143         if (ret)
 144                 return ret;
 145
 146         ret = devm_snd_soc_register_card(&pdev->dev, card);
 147         if (ret)
 148                 return dev_err_probe(&pdev->dev, ret,
 149                                      "snd_soc_register_card failed\n");
 150
 151         return 0;
 152 }
 153
 154 static const struct of_device_id trimslice_of_match[] = {
 155         { .compatible = "nvidia,tegra-audio-trimslice", },
 156         {},
 157 };
 158 MODULE_DEVICE_TABLE(of, trimslice_of_match);
 159
 160 static struct platform_driver tegra_snd_trimslice_driver = {
 161         .driver = {
 162                 .name = DRV_NAME,
 163                 .of_match_table = trimslice_of_match,
 164         },
 165         .probe = tegra_snd_trimslice_probe,
 166 };
 167 module_platform_driver(tegra_snd_trimslice_driver);
 168
 169 MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
 170 MODULE_DESCRIPTION("Trimslice machine ASoC driver");
 171 MODULE_LICENSE("GPL");
 172 MODULE_ALIAS("platform:" DRV_NAME);